US paediatricians update guidance on children's vitamin D intake to double previous levels.
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D000293:Adolescent; D001942:Breast Feeding; D002648:Child; D006801:Humans; D007223:Infant; D041943:Infant Formula; D017410:Practice Guidelines as Topic; D014481:United States; D014807:Vitamin D / Q000008:administration & dosage*
D014807:Vitamin D